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by sladey
Thu Apr 25, 2024 8:44 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

I’ve gone through the software manual and there was a test to confirm that the crank sensors are both working. I ran that and it confirmed that they are


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by sladey
Thu Apr 25, 2024 7:28 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

Ok so ran them again. They all worked except pin10

Image
by sladey
Thu Apr 25, 2024 7:10 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

Bruce M wrote:Is Canems a 1-man-band?
Internet suggests he is good & helpful but hard to get hold of. I know I’d have the case open & oscilloscope probes out to trace back the signal, but that’s not for everyone.
I’m game for anything but need guidance and can’t spell sillyscope
by sladey
Thu Apr 25, 2024 6:59 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

But I’ll have another look
by sladey
Thu Apr 25, 2024 6:58 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

Actually thinking about it Nige and I did that - we did don’t we Nige
by sladey
Thu Apr 25, 2024 6:43 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

1987 3.2 Carrera Backdate project - Sladeys hotrod

Thanks for that Bruce I’ll give it a go
by sladey
Thu Apr 25, 2024 7:37 am
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

I just caught up with this, read the last 8 pages or so. I was glad to read when the noid light had been utilized; very useful information. I went through an similarity dispiriting diagnostic process with my erstwhile 87 924S with the same Motronic (but no Camens), a story for another time (or not ...
by sladey
Thu Apr 25, 2024 7:36 am
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

Isn't the number one cause of laid up 3.2 non-starts gummed up injectors? Could it be that the Canems unit pulse width isn't wide enough to open the blocked injector, whereas holding the injector to ground does? I realise you tested this with the noid LED, but I would revisit that. Hi Jonny It’s ha...
by sladey
Thu Apr 25, 2024 7:32 am
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

If you can establish serial comms with the ECU the microcontroller “brain” is not 100% fried. It may have lost the two output channels used for the injection pulses but perhaps just the high current semiconductors that amplify the microcontroller output. It should be repairable, in that situation. ...
by sladey
Wed Apr 24, 2024 7:08 pm
Forum: Classic Porsche General Chat
Topic: my non-Porsche picture of the day
Replies: 22165
Views: 1165532

Re: my non-Porsche picture of the day

Nice


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by sladey
Wed Apr 24, 2024 7:08 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

Yes that’s what I’m hoping - I mean it was functioning well when I logged into it so hopefully if there is any damage it won’t be too much - at the moment it’s more a question of how quickly they could do anything


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by sladey
Wed Apr 24, 2024 3:44 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

OK the AA man has been and just confirmed that we’ve done everything we can and agreed that it’s pointing at the ECU in some form. We sprayed carb cleaner down the air intake and it fired up (not great but it fired) Discussed everything we’d done and he came to the same conclusion. He looked at the ...
by sladey
Wed Apr 24, 2024 3:02 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

1987 3.2 Carrera Backdate project - Sladeys hotrod

But I got this from Pelican:- 1. If you have spark and all that is missing is the fuel your sensors are good. Period. 2. The injectors need permanent +12V on one side and the pulse (GND) from the DME on the other and fuel pressure of course. Currently expecting the AA any minute - will write again o...
by sladey
Wed Apr 24, 2024 2:33 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2431
Views: 255551

1987 3.2 Carrera Backdate project - Sladeys hotrod

OK so it’s not gone well…. But we think we’ve narrowed it down. Nige came round (thank a million Nige) and we spent all morning on it OK so - Fuel is fine - pouring out - while cranking Spark is fine However connecting a noid bulb across the injector socket gives no light at all while cranking - it ...